1986 Japanese general election
# 1986 Japanese general election

General elections were held in Japan on 6 July 1986 to elect the 512 members of the House of Representatives. This marks the last general election as of 2021 in which the LDP was able to obtain at least 300 seats in the House of Representatives, an event that only ever happened once before, in the 1960 election. This general election and 1960's are also tied for the highest number of seats ever obtained by the LDP in a general election, as both saw the LDP winning exactly 300 seats. However, the House of Representatives had fewer total seats in 1960, and so the popular vote for the LDP was actually stronger in 1960. Nonetheless, the 1986 general election also stands as the fourth strongest LDP showing in a general election in terms of the popular constituency votes.

## Results

| | Liberal Democratic Party | 29,875,501 | 49.42 | 300 | +50 |
| - | - | - | - | - | - |
| | Japan Socialist Party | 10,412,584 | 17.23 | 85 | –27 |
| | Japanese Communist Party | 5,313,246 | 8.79 | 26 | 0 |
| | Kōmeitō | 5,701,277 | 9.43 | 56 | –2 |
| | Democratic Socialist Party | 3,895,858 | 6.44 | 26 | –12 |
| | New Liberal Club | 1,114,800 | 1.84 | 6 | –2 |
| | Socialist Democratic Federation | 499,670 | 0.83 | 4 | +1 |
| | Other parties | 120,627 | 0.20 | 0 | – |
| | Independents | 3,515,043 | 5.81 | 9 | –7 |
| Total | Total | 60,448,606 | 100.00 | 512 | +1 |
| Valid votes | Valid votes | 60,448,606 | 97.96 | | |
| Invalid/blank votes | Invalid/blank votes | 1,259,044 | 2.04 | | |
| Total votes | Total votes | 61,707,650 | 100.00 | | |
| Registered voters/turnout | Registered voters/turnout | 86,426,845 | 71.40 | | |
| Source: IPU ||||||

### By prefecture

| Prefecture | Total seats | Seats won | Seats won | Seats won | Seats won | Seats won | Seats won | Seats won | Seats won |
| - | - | - | - | - | - | - | - | - | - |
| Prefecture | Total seats | LDP | JSP | Kōmeitō | JCP | DSP | NLC | SDF | Ind. |
| Aichi | 22 | 11 | 2 | 2 | 1 | 4 | | | 2 |
| Akita | 7 | 5 | 2 | | | | | | |
| Aomori | 7 | 7 | | | | | | | |
| Chiba | 18 | 12 | 2 | 3 | 1 | | | | |
| Ehime | 9 | 7 | 1 | 1 | | | | | |
| Fukui | 4 | 3 | | | | | | | 1 |
| Fukuoka | 19 | 9 | 4 | 4 | | 1 | | 1 | |
| Fukushima | 12 | 8 | 3 | | | 1 | | | |
| Gifu | 9 | 6 | 1 | 1 | | | | | 1 |
| Gunma | 10 | 8 | 2 | | | | | | |
| Hiroshima | 12 | 9 | 1 | 1 | | 1 | | | |
| Hokkaido | 23 | 13 | 7 | 1 | 1 | | | | 1 |
| Hyōgo | 19 | 10 | 4 | 3 | 1 | 1 | | | |
| Ibaraki | 12 | 8 | 2 | 1 | | 1 | | | |
| Ishikawa | 5 | 4 | 1 | | | | | | |
| Iwate | 8 | 6 | 2 | | | | | | |
| Kagawa | 6 | 5 | 1 | | | | | | |
| Kagoshima | 10 | 7 | 3 | | | | | | |
| Kanagawa | 20 | 5 | 4 | 4 | 1 | 2 | 4 | | |
| Kōchi | 5 | 2 | 1 | 1 | 1 | | | | |
| Kumamoto | 10 | 6 | 1 | 1 | | | | | 2 |
| Kyoto | 10 | 4 | | 2 | 2 | 2 | | | |
| Mie | 9 | 6 | 2 | 1 | | | | | |
| Miyagi | 9 | 7 | 1 | 1 | | | | | |
| Miyazaki | 6 | 5 | | | | 1 | | | |
| Nagano | 13 | 9 | 3 | | | 1 | | | |
| Nagasaki | 9 | 6 | 2 | | | 1 | | | |
| Nara | 5 | 2 | | 1 | 1 | 1 | | | |
| Niigata | 13 | 10 | 2 | | | | | | 1 |
| Ōita | 7 | 4 | 2 | | | 1 | | | |
| Okayama | 10 | 5 | 1 | 2 | | 1 | | 1 | |
| Okinawa | 5 | 2 | 1 | 1 | 1 | | | | |
| Osaka | 27 | 7 | 4 | 7 | 6 | 3 | | | |
| Saga | 5 | 3 | 1 | | | | | | 1 |
| Saitama | 17 | 9 | 2 | 3 | 1 | 1 | 1 | | |
| Shiga | 5 | 3 | 1 | | | 1 | | | |
| Shimane | 5 | 3 | 2 | | | | | | |
| Shizuoka | 14 | 10 | 2 | 1 | | 1 | | | |
| Tochigi | 10 | 5 | 3 | 1 | | 1 | | | |
| Tokushima | 5 | 3 | 1 | 1 | | | | | |
| Tokyo | 44 | 19 | 5 | 10 | 8 | | 1 | 1 | |
| Tottori | 4 | 3 | 1 | | | | | | |
| Toyama | 6 | 4 | 2 | | | | | | |
| Wakayama | 6 | 4 | | 1 | 1 | | | | |
| Yamagata | 7 | 6 | | | | | | 1 | |
| Yamaguchi | 9 | 6 | 2 | 1 | | | | | |
| Yamanashi | 5 | 4 | 1 | | | | | | |
| Total | 512 | 300 | 85 | 56 | 26 | 26 | 6 | 4 | 9 |
